Patent US3866670A successfully refreshed from Google Patents.
US3866670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube bundle cable
Assignee: KM Kabelmetal AG
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Filing: 1972-03-09
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Granted: 1975-02-18
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Expires: 1992-03-09
Abstract
Abstract A bundle of stranded tubes is enclosed in and received by a corrugated sleeve.
Inventors
- 👤 Christoph Cramer
- 👤 Hans-Martin Schmidtchen
- 👤 Hans Jurgen Schwartze
- 👤 Bernd Eichmeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:30
CPC Classifications
F; F16; F16L; F16L53/00; F16L53/30; F16L53/32; F16L53/70; F16L9/00; F16L9/18
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
129 words
Conduit structure for a plurality of different fluids, at least some of them being pressurized, comprising: a plurality of individual tubes disposed in relation to each other to form a cable bundle; a longitudinally bent and longitudinally seam welded tape establishing a tubular jacket around the tubes, the jacket being pressure proof by virtue of the longitudinal seam welding and having helical corrugation which defines helical channels inside of the jacket; and fluid maintained in the helically corrugated jacket and flowing in and along the helical channels inside of the jacket but in helical, circumscribing flow as to the bundle, for uniformly providing the fluid in heat exchange contact with the bundle from the periphery thereof to obtain temperature isolation of the tubes of the bundle from the environment.
Claim 2
Dependent Claim
129 words
Conduit structure for a plurality of different fluids, at least some of them being pressurized, comprising: a plurality of individual tubes disposed in relation to each other to form a cable bundle; a longitudinally bent and longitudinally seam welded tape establishing a tubular jacket around the tubes, the jacket being pressure proof by virtue of the longitudinal seam welding and having helical corrugation which defines helical channels inside of the jacket; and fluid maintained in the helically corrugated jacket and flowing in and along the helical channels inside of the jacket but in helical, circumscribing flow as to the bundle, for uniformly providing the fluid in heat exchange contact with the bundle from the periphery thereof to obtain temperature isolation of the tubes of the bundle from the environment.
Claim 3
Dependent Claim
14 words
Conduit structure as in claim 1, the fluid in the jacket being a coolant.
Claim 4
Dependent Claim
15 words
Conduit structure as in claim 1, the fluid in the jacket being a heating fluid.
Claim 5
Dependent Claim
28 words
Conduit structure as in claim 1, the jacket being filled with a fluid maintained under particular high pressure having value between external pressure and pressure in the tubes.
Claim 6
Dependent Claim
24 words
Conduit structure as in claim 1, the jacket being filled with a fluid maintained under particular pressure, there being means to monitor the pressure.
Claim 7
Dependent Claim
25 words
Conduit structure as in claim 1, there being a second, outer jacket disposed around said first sleeve, the second sleeve concentrically receiving the first sleeve.
Claim 8
Dependent Claim
24 words
Conduit structure as in claim 6, there being a cooling or heating fluid in the ring space between the first and the second sleeves.
Claim 9
Dependent Claim
13 words
Conduit structure as in claim 6, an insulating layer on the second sleeve.
Claim 10
Dependent Claim
12 words
Conduit structure as in claim 1, an insulating layer on the sleeve.
Claim 11
Dependent Claim
14 words
Conduit structure as in claim 1, the tubes of the plurality made of metal.
Claim 12
Dependent Claim
10 words
Conduit structure as in claim 10, the metal being copper.
Claim 13
Dependent Claim
13 words
Conduit structure as in claim 1, the tubes of the plurality being corrugated.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |